AZ23B5V1-HE3_A-08

Overview

The AZ23B5V1-HE3_A-08 is a silicon planar Zener diode from the Vishay AZ23 series, housed in an SOT-23 package. It features a nominal Zener voltage of 5.1 V with a tight tolerance of ±2%, tested at a current of 5 mA. The device has a maximum reverse leakage current of 1 µA and a dynamic impedance of 60 Ω. Qualified under AEC-Q101 standards, it supports a junction temperature up to 150 °C and operates within a range of -55 °C to +150 °C.

Feature Summary

• Dual-element common anode configuration for space-efficient circuit designs
• AEC-Q101 automotive qualification ensuring reliability in harsh environments
• High electrostatic discharge protection capability exceeding 8 kV via human body model

Applications

• Automotive electronic systems requiring robust voltage regulation
• Clamping circuits for protecting sensitive inputs against transient overvoltages
• Reference voltage generation in precision measurement instrumentation

Procurement Notes

Verify that the ordering code matches the specific suffix requirements for automotive grade components. Confirm RoHS compliance status and material categorization details directly with the manufacturer or authorized distributors before finalizing procurement orders.

Selection Notes

Select this component when a precise 5.1 V reference with strict ±2% tolerance is required. Ensure the application environment remains within the specified operating temperature limits and consider the thermal resistance characteristics for power dissipation management on FR-4 boards.

Part Context

This part belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series offers a wide range of standard E24 voltages in a compact SOT-23 footprint, catering to general-purpose and automotive applications requiring reliable voltage regulation.

Replacement Considerations

Direct substitutes include other AZ23B5V1 variants such as AZ23B5V1-E3-08 or AZ23B5V1-HE3-08, provided they meet the same electrical specifications and package dimensions. Verify pinout compatibility and thermal performance before implementation.

FAQ

What is the marking code for the AZ23B5V1-HE3_A-08?

The marking code for this device is DD8.

Does the HE3_A suffix indicate RoHS compliance?

Yes, the HE3_A suffix denotes a RoHS-compliant product that is also qualified under AEC-Q101 standards.

What is the maximum power dissipation on an FR-4 board?

The maximum power dissipation is 300 mW when mounted on an FR-4 board with the recommended soldering footprint.